Seat Leon Cupra 5F Brake Caliper Rear Left N/S 310x22mm 5F0615423

Seat Leon Cupra 5F Brake Caliper Rear Left N/S 310x22mm is an original brake system component designed for installation on the rear axle on the driver's side. Thanks to its compatibility with the 310x22 mm brake disc, it ensures stable system operation, predictable braking force modulation, and consistency with the factory characteristics of the Cupra model. This is a solution for users who expect precise brake response and the maintenance of the vehicle's original performance parameters.

Specifications and technical data

• SKU: 5F0615423
• Mark: Seat
• Condition: Used
• OEM Part Number: 5F0615423
• Substitutable numbers: 5F0615423, 5F0 615 423
• Location on the vehicle: Rear, Left
• Category: Calipers & Brackets

Purpose and compatibility with the brake system

The presented caliper is designed for operation on the rear axle on the left side, in a configuration with a 310 mm diameter and 22 mm thick brake disc. This setup is characteristic of the sporty Leon Cupra 5F version, where the brake system must handle higher thermal and mechanical loads than in standard model variants.

Selecting a caliper with the appropriate diameter and thickness for the corresponding disc is crucial for:

• maintaining the correct brake force distribution between the front and rear,
• vehicle stability during emergency braking,
• even wear of brake pads and discs,
• maintaining the factory operating characteristics of assistance systems (ABS, ESP).

Caliper construction and operating characteristics

The caliper from the Brake calipers and carriers category is responsible for pressing the pads against the disc surface and ensuring repeatable braking force during successive operating cycles. In the case of the Cupra version, it is particularly important that this component ensures:

• stable pad guidance in the carrier,
• adequate body rigidity under higher loads,
• proper cooperation with the factory brake master cylinder and lines,
• effective heat dissipation from the disc-pad area.

By maintaining the original geometry, the caliper allows for the correct positioning of the pads relative to the disc, which translates into even pressure and predictable vehicle behavior during braking in various road conditions.

Benefits of using an original rear caliper

Using an original caliper in the sporty Leon Cupra 5F version offers a number of practical operational benefits:

• Compatibility with the factory system – maintaining the serial operating parameters of the brake system without the need to modify other components.
• Consistency with the Cupra model characteristics – appropriately selected rear axle braking force, essential for dynamic driving.
• Optimal cooperation with the 310x22 mm disc – the correct operating range for the piston and pads, which reduces the risk of overheating and uneven wear.
• Ability to maintain the serial brake balance – important for drivers utilizing the full potential of the car, including on routes with varied profiles.

Component condition and practical application

The offered caliper is a used component, which in practice allows for an economical repair of the brake system while maintaining the vehicle's original specification. This type of component is particularly attractive to users who:

• are restoring the factory brake configuration after mechanical damage,
• are restoring full system efficiency after intensive use,
• are looking for parts consistent with the equipment installed on the production line.

Before installation, a standard workshop procedure is recommended, including checking the condition of working surfaces, guides, seals, and bleeding the system after installation. A correctly installed caliper allows for the restoration of predictable, repeatable brake operation on the rear axle.

Brake system expansion and additional materials

If you are planning a comprehensive repair or upgrade of the braking zone in your Seat and need other elements from the same group, such as additional calipers, carriers, or brackets, check the available parts in the Seat Brake calipers and carriers category.

When choosing used brake system components, it is worth following a proven technical condition verification procedure. A detailed list of steps to pay attention to when purchasing discs, calipers, and ABS components can be found in the article: Second-hand brake system: how to safely select discs, calipers, and ABS?.